/*
 * Copyright (C) 2016 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.example.android.apis.view

import android.annotation.SuppressLint
import android.content.Context
import android.os.Build
import android.util.AttributeSet
import android.view.MotionEvent
import android.view.PointerIcon
import androidx.annotation.RequiresApi
import androidx.appcompat.widget.AppCompatButton
import com.example.android.apis.R

/**
 * Loads a [PointerIcon] from the "pointer-icon" resource R.drawable.custom_pointer_icon in its
 * [onResolvePointerIcon] override (needs mouse)
 */
@RequiresApi(api = Build.VERSION_CODES.N)
class ResourcePointerIconButton : AppCompatButton {
    private var mCustomIcon: PointerIcon? = null

    @JvmOverloads
    constructor(
            context: Context?,
            attrs: AttributeSet? = null
    ) : super(context!!, attrs)

    constructor(
            context: Context?,
            attrs: AttributeSet?,
            defStyleAttr: Int
    ) : super(context!!, attrs, defStyleAttr)

    @SuppressLint("ResourceType")
    override fun onResolvePointerIcon(event: MotionEvent, pointerIndex: Int): PointerIcon {
        if (mCustomIcon == null) {
            mCustomIcon = PointerIcon.load(resources, R.drawable.custom_pointer_icon)
        }
        return mCustomIcon!!
    }
}